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Metal was not cut to small like expect when use RNetExtractor

daidai
in Layout

Hi @Matthias,

I’m trying to use RNetExtract to extract a net. My expectation was that the metal shape would be split into smaller pieces to form a resistor network, but the result only contains very few resistors. I also tried setting skip_simplify=True, but the outcome didn’t change much.

Is there a way to control or limit the size of each resistor segment when the metal is divided? With the current segmentation, the extracted resistors seem a bit inaccurate.

I’ve attached the script and the GDS file I used.

Thanks to you and your team,
dai

Comments

  • daidai

    I forgot put result I got:

  • MatthiasMatthias

    Why do you say, it's not accurate?

    The extractor does "square counting" as it says. The metal2 strip on layer 32 has a length of 2.617 (via center to center) and width of 0.23. That makes 11.37826 squares. With 0.04 Ohm/square this gives 0.45513 Ohm - exactly what the last line says. Splitting the line into smaller parts will not change that.

    Matthias

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